单词	expansion fastener
释义	DictionarySeeexpansion bolt expansion fastener expansion bolt expansion bolts An anchoring device having an expandable socket that swells as a bolt is tightened into it; used in masonry walls for attaching timber, etc.
随便看	key move keynes keynesian keynesian beauty contest keynesian consumption function keynesian economics keynesian economists keynesianism keynesian policies keynesians keynesian theory keynesian welfare national state keynesian welfare state keynes john maynard keynes johnmaynard keynes, john maynard keynes, john maynard, 1st baron keynes, john maynard, baron keynes of tilton key note keynote keynote address keynoted keynoter keynoters keynotes

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